• I havent said to invest in altcoins. I consider Bitcoin and a few others to be worth it. I don't think 90% of coins are scams, but definitely more then 50% are. So I was talking about BTC not altcoins here.
• Not really, I mean if you don't scream HEY I HAVE 1000 BTC IN WALLET XXXX COME AND HACK ME PLS , you will probably not get hacked. Get a hardware wallet if you are very worried.
• And it's my fault that people are dumb to invest in scams? Clearly bitcoin has nothing to do with scammers, you get scammed on almost any penny stocks, so what? Alteast bitcoin itself is stable. Now if you start investing in bitcoin doublers, that is another thing. But if you just hold your bitcoins, it should be no problem.

If you ask random people in the street and they will rarely tell you that their money got stolen from a bank or a savings account. That's like almost never.

Not if you ask people from Cyprus, who got a nice haircut on their deposits:
https://bitcointalk.org/index.php?topic=160292.0